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System Protection: Prevents nuisance high-limit trips and temperature stratification issues by providing accurate water temperature monitoring at the heat exchanger outlet
the parts are completely interchangeable
Key Benefits Precise Flame Sensing: Proven DC microamp signal transmission ensures the control board accurately detects flame presence to prevent nuisance shutdowns
Operating on a 460V 3-phase 60Hz power supply
What are the actual dimensions
Lennox 44L65 Limit Switch 321702-401 System Protection: Prevents nuisance high-limitThe Lennox 44L65 Limit Switch is a critical safety component designed for precise thermal regulation within residential gas furnaces and air handlers. Engineered as a 160 185F AUTO limit switch, this normally closed (NC) thermal sensor monitors heat exchanger temperatures to prevent overheating and potential component failure. Functioning as a high limit safety cut out, the 44L65 features an automatic reset mechanism that restores the circuit once
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